60
Pulse ratio register: any integer from 1 to 6000. One digit represents 0.1Kwh
or Kvarh. This value is the minimum resolution of energy pulse output.
Pulse width setting register: any integer from 1 to 50. One digit represents
20ms.
The minimum time interval between two adjoining output pulses is 20ms in
Ai205. If the pulse width is 20ms, then maximum number of output pulses is 25 in
one Second. If the pulse width is 80ms, then the maximum number of output
pulse is 10.
In practice the pulse width and the pulse ratio are selected according to system
power. The relation of the two parameters should satisfied following expression,
In the expression, the Pmax is the maximum power or reactive power. The
unit is KW or Kvar. Recommend pulse ratio is 3 to 5 times the right side value of
the above expression.
Relay output: The two relay output (option) in Ai205 can be used to control
electric switch or equipment. There are two output mode of the relay, latching or
momentary. Momentary mode is often used to control the electric switch. The
closing time interval can be selected between 50ms to 3000ms.
(pulse width + 1) x Pmax
Pulse ratio >
18000
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